A Fix To A Fox Situation

I discovered something this morning that was beautiful, but also freaked me out a bit. A fox has apparently given birth to a litter and they're now living in my backyard. I discovered their home when my dog started barking and squealing louder than usual. When I looked around for what she might be reacting to, I saw two small foxes and one big one scurrying up a little hill and into a hole in my yard.

Okay, so now that I know they're living there, what am I supposed to do? I think Taylor is part foxhound so it's probably not wise to have her "sworn enemies" sharing the same yard. But I don't want to disrupt the lives of these cute little babies.